Hi,
I have the same part set but have not built it up yet. That project is on a back burner for a while. TRS usually does not supply instructions so you need to know a little bit about how wheellocks work inside. I can help you with the project because I understand how the early German lock is constructed and operates. In my case, I intend to modify it and upgrade the quality of the decoration befitting a finer lock made in Munich around 1590. One of your challenges will be to heat treat the massive mainspring properly. I hope you have some experience with lock making, metal working, and heat treating. The first task is to grind off all of the flashing and file finish each part to fit. I suggest you do that before drilling any holes. Be careful, because some of the detail in some parts is actualy hidden within the flashing, so don't just whack away at it with a grinder. Some parts like the chain links are best made from scratch using the cast parts as models. Also, the fit of the wheel into the pan is a bit sloppy and likely will allow powder fouling to jam the wheel. On my lock, I will weld new steel into the pan slot, finish and harden the wheel, and then use it to cut into the bottom of the pan for a precise fit. The screws that TRS supplied are either 8-32 or 10-32 with the exception of the top jaw screw. I'll probably use the screws as guides but make my own that are more historically correct. Also, do not trust the markings for holes on parts and the lockplate. You have to check their accurate placement with the finished parts before drilling. This is very hard to do unless you understand the mechanism. One way to simplify your tasks is to ignore the safety mechanism initially. Just build up the lock without it, then add it later after you have everything else fitted and working properly. Good luck, you bit off a big chunk to chew when buying that lock. The plans you will find on the internet are taken from Lauber's book on making a wheellock. They will help a little but your lock is not the same as the mid 17th century lock Lauber recreates.
dave